340311204420 has 48 divisors (see below), whose sum is σ = 1039496044608. Its totient is φ = 82499685760.

The previous prime is 340311204371. The next prime is 340311204421. The reversal of 340311204420 is 24402113043.

It is not an unprimeable number, because it can be changed into a prime (340311204421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257810859 + ... + 257812178.

It is an arithmetic number, because the mean of its divisors is an integer number (21656167596).

Almost surely, 2^340311204420 is an apocalyptic number.

340311204420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340311204420 is an abundant number, since it is smaller than the sum of its proper divisors (699184840188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340311204420 is a wasteful number, since it uses less digits than its factorization.

340311204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515623060 (or 515623058 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 340311204420 its reverse (24402113043), we get a palindrome (364713317463).

The spelling of 340311204420 in words is "three hundred forty billion, three hundred eleven million, two hundred four thousand, four hundred twenty".